<template>
    <div>
        <div class="search-div" style="margin-bottom: 10px;">
            <el-form label-width="70px" size="small">
                <el-row>
                    <el-col :span="8">
                        <el-form-item label="关 键 字">
                            <el-input style="width: 95%" v-model="searchObj.name" placeholder="学生姓名"></el-input>
                        </el-form-item>
                    </el-col>
                    <el-col :span="8">
                        <el-form-item label="操作时间">
                            <el-date-picker v-model="createTimes" type="datetimerange" range-separator="至"
                                start-placeholder="开始时间" end-placeholder="结束时间" value-format="yyyy-MM-dd HH:mm:ss"
                                style="margin-right: 10px;width: 100%;" />
                        </el-form-item>
                    </el-col>
                </el-row>
                <el-row style="display:flex">
                    <el-button type="primary" icon="el-icon-search" size="mini" @click="fetchData()">搜索</el-button>
                    <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>
                </el-row>
            </el-form>
        </div>
        <!-- 工具条 -->
        <div class="tools-div">
            <el-button type="success" icon="el-icon-plus" size="mini" @click="dialogVisible = true">添 加</el-button>
        </div>
        <el-dialog title="添加/修改" :visible.sync="dialogVisible" width="40%">
            <el-form ref="sysStudent" :model="sysStudent" label-width="100px" size="small" style="padding-right: 40px">
                <el-form-item label="学生姓名" prop="name" :rules="{ required: true, message: '学生不能为空', trigger: 'blur' }">
                    <el-input v-model="sysStudent.name" />
                </el-form-item>
                <el-form-item label="学号" prop="no" :rules="[
                        { required: true, message: '学号不能为空', trigger: 'blur' },
                        {
                            pattern: /^([1-9][0-9]{9}[a-zA-Z])$/,
                            message: '学号的长度为11，且第一位不为0，最后一位是字母',
                            trigger: 'blur',
                        },
                    ]">
                    <el-input v-model="sysStudent.no" @blur="CheckName(sysStudent.no)" />
                </el-form-item>
                <el-form-item label="性别"  prop="gender"
                    :rules="{ required: true, message: '性别不能为空', trigger: 'blur' }">
                    <el-radio v-model="sysStudent.gender" :label="0">男</el-radio>
                    <el-radio v-model="sysStudent.gender" :label="1">女</el-radio>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="CloseDialog" size="small" icon="el-icon-refresh-right">取 消</el-button>
                <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
            </span>
        </el-dialog>
        <div class="app-container">
            <!-- 列表 -->
            <el-table v-loading="listLoading" :data="list" stripe border style="width: 100%;margin-top: 10px;">

                <el-table-column label="序号" width="70" align="center">
                    <template slot-scope="scope">
                        {{ (page - 1) * limit + scope.$index + 1 }}
                    </template>
                </el-table-column>
                <el-table-column prop="name" label="姓名" width="180" />
                <el-table-column prop="no" label="学号" width="180" />
                <el-table-column label="性别" prop="gender" align="center">
                    <template scope="scope">
                        {{ scope.row.gender === 0 ? '男' : '女' }}
                    </template>
                </el-table-column>
                <el-table-column prop="createTime" label="创建时间" />
                <el-table-column prop="updateTime" label="修改时间" />

                <el-table-column label="操作" align="center" fixed="right">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)"
                            title="修改" />
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)"
                            title="删除" />
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页组件 -->
            <el-pagination :current-page="page" :total="total" :page-size="limit"
                style="padding: 30px 0; text-align: center;" layout="total, prev, pager, next, jumper"
                @current-change="fetchData" />

        </div>
    </div>
</template>
<script>

import api from '@/api/student/student.js'
const defaultForm = {
    id: "",
    no: "",
    gender: 0,
    name: "",
};
export default {
    data() {
        return {
            listLoading: true, // 数据是否正在加载
            list: null, // banner列表
            total: 0, // 数据库中的总记录数
            page: 1, // 默认页码
            limit:5, // 每页记录数
            searchObj: {}, // 查询表单对象

            createTimes: [],

            dialogVisible: false,
            sysStudent: defaultForm,
            saveBtnDisabled: false,
            isIndeterminate: false, // 是否是不确定的
            checkAll: false // 是否全选
        }
    },
    created() {
        this.fetchData();
    },
    methods: {
        fetchData(page = 1) {
            this.page = page;
            if (this.createTimes && this.createTimes.length == 2) {
                this.searchObj.createTimeBegin = this.createTimes[0];
                this.searchObj.createTimeEnd = this.createTimes[1];
            }

            api.getPageInfo(this.page, this.limit, this.searchObj).then(
                response => {
                    //this.list = response.data.list
                    // console.log("列表：", response.data)
                    this.list = response.data.records;
                    this.total = response.data.total;
                    // 数据加载并绑定成功
                    this.listLoading = false;
                }
            )
        },
        resetData() {
            // 1.清空条件搜索
            this.searchObj = {};
            //2.清空日期条件
            this.createTimes = [];
            //3.刷新数据列表
            this.fetchData();
        },

        edit(id) {
            //a.根据id去得到当前用户 
            api.getById(id).then(response => {
                //b.将数据赋值给 sysStudent
                this.sysStudent = response.data;
                //c.打开弹框
                this.dialogVisible = true;
            })
        },
        CheckName(no) {
            if (no === "") {
                return;
            }

            if (this.sysStudent.id === "") {
                api.selectByName(no).then((response) => {
                    // console.log("响应的数据", response.data);
                    if (response.data !== "") {
                        this.$message.error(response.data);
                    }
                });
            }
        },
        saveOrUpdate() {
            this.$refs.sysStudent.validate((valid) => {
                if (valid) {
                    api.saveOrUpdate(this.sysStudent).then((response) => {
                        // 提示
                        this.$message({
                            type: "success",
                            message: "保存成功!",
                        });
                        this.sysStudent = {};
                        this.dialogVisible = false;
                        // 刷新页面
                        this.fetchData(this.page);
                    });
                }
            })

        },
        CloseDialog() {
            this.sysStudent = {};
            this.dialogVisible = false
        },
        // 根据id删除数据
        removeDataById(id) {
            this.$confirm("此操作将永久删除该文件, 是否继续?", "提示", {
                confirmButtonText: "确定",
                cancelButtonText: "取消",
                type: "warning",
            }).then(() => {
                api.removeById(id)
                    .then((response) => {
                        // 提示
                        this.$message({
                            type: "success",
                            message: "删除成功!",
                        });
                        // 刷新页面
                        this.fetchData(this.page);
                    });
            });
        },
    }
}
</script>